The Dutchman was backed by the club on Thursday in the wake of the team´s poor form in La Liga prompting speculation over his future.
"I have to believe people," said Koeman. "If there was a statement and a phone call from Rafael Salom (sporting vice-president) I have to believe in that, because if not, I´m working with dishonest people."
Copyright (c) PA Sport 2008, All Rights Reserved.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: https://www.givemesport.com/writeforgms